7. Solve for x. (2х + 5) B a. x= 90 b. х%3D 87.5 с. х 3 42.5 d. х- 27.5

Show correct answer and choose the answer from the choices. Please answer right within 30mins. Thank you!

Solve for X.

Solve for x.

с (2х2+3х-1) dx 3. х3+5х2+6х

b. у 3 -12х С. y = 6x d. y=-6x 5. The depth of an underwater camera on a cable anchored to the sea floor is Camera proportional to the time. The table records the time in seconds (s) and depth in Time (s) Depth (m) meters (m) of the camera. Fill in the missing values in the table. -1 60 100 -5 240 re to search

Solve ³R_R=0 4 2 -4/2 ans. R= Ae

The altitude of a triangle is increasing at a rate of 2 centimeters/minute while the area of the triangle is increasing at a rate of 3 square centimeters/minute. At what rate is the base of the triangle changing when the altitude is 10.5 centimeters and the area is 87 square centimeters? cm/min

16 Solve the formula for the indicated l. 10) S =극t2 극2 for t %3D

Radium decomposes at a rate proportional to the amount present. If 250 mg. of radium is reduced to 180 mg. of radium in 275 years, how much radium will remain at the end of 550 years ? O None of the choices 250- (주)2 18 25 O 250 · 18 0 250.(2층)2 18 O 250 - 18 25